scramble pairs

[Gehrig]

Hello,

I'm trying to set up a scramble vball pairs tournament. with only 4 courts, but I don't know how many will show until they all show up for this scramble. 

I tried to download the excel but its not working for me.

Is there any help I could get?
The number of rounds I can work with I could just shorten the game times. to fit my schedule.

Gehrig

[Gehrig]

Im also looking at this same event since I don't have court space or don't know how many people will show up. I might have to do 4vs4 instead of 2vs2.  And solutions for a last minute round-robin to make this a royalty of the courts competition?

Gehrig